MedakaSp09

MedakaSp09 - Early Development of Fish Embryos (Medaka) Bio...

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Early Development of Fish Embryos (Medaka ) Bio 183 Labs Spring 2009
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Mar. 19, 2009 6:00PM Hairs on eggs used to attached to aquatic plants Oil globules used for food Embryo is currently a tiny pad of cells
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STAGE 25-(54 hours) Characteristics: Occasional twitches causing slight body bend Heart beats Eyes are visible Tail is separate from the sac (straight still) Contains oil bubble Outside of egg has hairs Photo taken: 3/23/09 at 2:20pm Oil sac tail eye heart
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March23- Stage 26 (56 hours) Eyes dusky Heart pumping Yolk, oil sac Curved tail tip
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March 24-Stage 29 (84 hours) heart tail Pectoral fin
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March 24: 1:20 p.m. -Stage 31(121 hours) -Eyes are visible -Body is forming -Tail is visible - Heart beats - 150 beats per minute - Blood is also visible Tail (fin) Eyes Body
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March 24, 2009 5:40pm Eye Stage 22 Weak Cardiac Contraction Brain Ventricles are forming Body formed Heart Body Eyes
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March 25, 10:09 a.m. Stage 31
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MedakaSp09 - Early Development of Fish Embryos (Medaka) Bio...

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